I always just pick up the portable self scanner and scan items as I put them in my cart. By the time I get to self checkout everything is scanned and I just pay. Pretty much every major grocery chain in my area (Netherlands) does that, it’s not common where you live?
Different cultures, different features. Some places in Denmark have that, where you can just scan and pay with your phone and just leave. Never seen security in a supermarket and the most you have to do is show the cashier that the phone screen is green (meaning you paid).
In Romania, there are the cart & self scan checkouts, but there are also checkouts where you put your stuff in the cart, then an employee scans them like usual, then you go and pay for your stuff at a machine. Both are watched, with security.
